Re: Putting headlights on relay...
Reading back over this thread, you have a 55 amp 10DN alternator, a VR715 reg, something other than stock headlamps, and the intermittent running.
First, on the SS VR install, '67's & '68's use rubber wellnuts for mounting the reg and a strap from the rad support to the VR chassis. Do one of two things, 1) remove the wellnuts and bolt the VR directly to the rad support with a star washer between the chassis and VR, or 2) install a ground jumper from VR chassis to rad support/ground. Alt case & VR have to be on the same reference for proper control.
Take the alt and VR to a dedicated Starter/Alternator repair and have them tested together, or take the Camaro to a shop having a VAT-40 tester and test on the car. View the results. The latter would be a better test.
A 10DN alt, or any alt, will show 12.5 volts at idle with a full load/accessories on. As long as voltage goes up as loads/demands are removed, the better. An alt, any alt, will provide max power at high rpms.
Does the Camaro run good with headlamps off? No intermittent action?
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